<template>
  <el-menu default-active="1-4-1" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose" :collapse="isCollapse"
           background-color="#545c64"
           text-color="#fff"
           active-text-color="#ffd04b">
    <h3>{{ isCollapse? '后台' : '通用后台系统' }}</h3>
    <el-menu-item @click="clickMenu(item)" v-for="item in noChildren" :key="item.name" :index="item.name">
      <i :class="`el-icon-${item.icon}`"></i>
      <span slot="title" >{{ item.label}}</span>
    </el-menu-item>

    <el-submenu v-for="item in hasChildren" :key="item.label" :index="item.label">
      <template slot="title" >
        <i :class="`el-icon-${item.icon}`"></i>
        <span slot="title">{{ item.label }}</span>
      </template>
      <el-menu-item-group v-for="subItme in item.children" :key="subItme.name">
        <el-menu-item :index="subItme.name" @click="clickMenu(subItme)">{{subItme.label}}</el-menu-item>
      </el-menu-item-group>


    </el-submenu>


  </el-menu>
</template>

<style scoped lang="less">
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}

.el-menu {
  height: 100vh;
  border-right: none;
  h3 {
    color: #fff;
    font-size: 16px;
    line-height: 48px;
    text-align: center;
    font-weight: 400;
  }


}
</style>

<script>
import Cookie from "js-cookie";
export default {
  data() {
    return {
      // isCollapse: false,
      // menuData: [
      //   {
      //     path: "/",
      //     name: "home",
      //     label: "首页",
      //     icon: "s-home",
      //     url: "Home/Home",
      //   },
      //   {
      //     path: "/mall",
      //     name: "mall",
      //     label: "商品管理",
      //     icon: "video-play",
      //     url: "MallManage/MallManage",
      //   },
      //   {
      //     path: "/user",
      //     name: "user",
      //     label: "用户管理",
      //     icon: "user",
      //     url: "UserManage/UserManage",
      //   },
      //   {
      //     label: "其他",
      //     icon: "location",
      //     children: [
      //       {
      //         path: "/page1",
      //         name: "page1",
      //         label: "页面1",
      //         icon: "setting",
      //         url: "Other/PageOne",
      //       },
      //       {
      //         path: "/page2",
      //         name: "page2",
      //         label: "页面2",
      //         icon: "setting",
      //         url: "Other/PageTwo",
      //       },
      //     ],
      //   },
      // ]
    };
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    clickMenu(item) {
      if(this.$route.path !== item.path && !(item.path === '/' && this.$route.path === '/home')){
        this.$router.push(item.path)
      }
      // 修改面包屑功能
      this.$store.commit('selectMenu', item)


    }
  },

  computed: {
    noChildren() {
      return this.menuData.filter(item => !item.children)
    },
    hasChildren() {
      return this.menuData.filter(item => item.children)
    },
    isCollapse() {
      return this.$store.state.tab.isCollapse
    },
    menuData() {
      // 判断当前数据，如果缓存中没有，从当前的 store 中获取
      return JSON.parse(Cookie.get('menu')) || this.$store.state.tab.menu
    }

  }
}
</script>